<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>V3</title>   
  </head>
  <body>
    <div id="app">       
         {{ message  }}         
    </div>   
  </body>
</html>
<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>
<script>
   
  const { createApp } = Vue;
  createApp({    
    data() {
      return {       
        message: "Hello Vue!",        
      };
    },   
  }).mount("#app");
</script>
